Lawn barrier



FIG. 1 is a perspective view of the lawn barrier showing my new design;

FIG. 2 is a enlarged partial cross-sectional view taken along line 2--2 of FIG. 1;

FIG. 3 is a top plan view; and,

FIG. 4 is a left side elevational view. 

The ornamental design for a lawn barrier, as shown and described. 